/*
    break演示
*/
#include <stdio.h>
int main() {
    int num = 0;
    for(num = 1; num <= 10; num++) {
	printf("%d ", num);
    	if(num == 7) {
	    break;
   	}
    }
    printf("\n");
    printf("num是%d\n",num);
    return 0;
}
